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drm/i915: Restore brightness level in aux backlight driver 

Some panel will default to zero brightness when turning the
panel off and on again. This patch restores last brightness
level back when panel is turning back on.

Signed-off-by: Puthikorn Voravootivat <puthik@chromium.org>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170511230225.142870-8-puthik@chromium.org
This commit is contained in:
Puthikorn Voravootivat 2017-05-11 16:02:23 -07:00 committed by Jani Nikula
parent e9c9e5ae8b
commit 2630addf6b
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/i915/intel_dp_aux_backlight.c
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@ -127,6 +127,7 @@ static void intel_dp_aux_enable_backlight(struct intel_connector *connector)
}
set_aux_backlight_enable(intel_dp, true);
intel_dp_aux_set_backlight(connector, connector->panel.backlight.level);
}
static void intel_dp_aux_disable_backlight(struct intel_connector *connector)